Crinoids, despite looking like plants, are actually animals related to starfish and sea urchins. elaborate share
Crocodiles can't stick their tongues out. Their tongues are attached to the bottom of their mouths. elaborate share
Triggerfish use their strong, beak-like mouths to crush shellfish and create nests in the sand by blowing jets of water. elaborate share
Emus can't fly, but they can swim! elaborate share
Albatrosses can sleep while flying, using only half of their brain at a time. elaborate share
Marine iguanas sneeze to expel excess salt from their bodies. elaborate share
A blue whale's heart is so big, a human could swim through its arteries. elaborate share
